Rotary pump



MMM

i G.v LOBB'lv l RQTARY PUMP'. 'APBLLCAIION F'ILED ocT. 9, 1920. A l ,@28, 1 7,3,4 f Patented Sept. 5, 1922',

. WITNEssEs G. LOBB. ROTARY PUMP.

APPLICATION FIL ED OCT- 9, 1920.

Patented Sept, 5, 1922.

unirisa erariale amaai-ii GEORGE LOBB, OF SELMA, 'C ALIFGRNA..

ROTARY rui/rr. y

Application riga october e, 1920. `serial No. 415,787.

T 0 all whom t may concern Y Be it known that I, GEORGE LoBB, a ycitizen of the United States, residing at Selma, in

the county of Fresno and State of California, have invented a new and useiul'lotary' Pump, of which the following is a specication. l

This invention has reference to pumps, and its object is to provide a portable and inexpensively constructed pump capable oit' operating in shallow streams and particu- -larly adapted for pumping water for irrigating purposes. There are various localities in the United Stateswhere irrigating systems are not installed, but where shallow streams are available and where cheaply obtained pumping outfits may be set up at the banhsof or even across the stream andthe water pumped to a sufficient height to liow over the adjacent territory, thereby irrigating the ground at a relatively insigniiicant cost. In this manner, and by means of the invention, tracts of land have been successfully irrigated in localities where the results of irrigation had not previously been obtained, while the ready portability of the invention permits the shifting of the water elevating means or pump from place to place as needed. naccordance with the invention, there is provided va pump which may be readily installed in shallow water and yet will lift relatively large quantities ot water to a. height permitting the iiow of water upon the surrounding ground for a suiiicient distance to answer the purposes ot irrigation. The improved pump is oi the rotary type to avoid the necessity of sinking the intake end to a considerable depthin water.

he whole structure is of a character' permitting it to be mounted upon a portable frame and to be operated by any one of numerous formsof explosion engines. l

llhe invention will be best understood from a consideration ofthe following detailed description taken in connection with the accompanying drawings forming part of this specification, with the understanding,

however, that the invention is not confined to any strict conformity with the showing in the drawings, but may be changed and modified so long as such changes and modifications mark no vmaterial departure from the salient features of the invention as eX- pressed in the appended claims.v

In the drawings:

Fig. l is a side elevation of a portable type cf shallow waterl pumpfembodying the invention. F 1g. 2 is -a vertical section of the fpump omitting some parts'shown injIF ig. l. l

Fig. S'is a'section on'tlie linejlS-'Boii Fo. 2 if i i Fig. 2.

Referring to the drawings there y.is Y shown `and in many .localities such a Iframe may pro]ect over oreven spana small stream. `The frame is carriednear one end by anil MW? @t v Fig. 4 is a sectiononthe line H of i ,y p 4,65` a support which may be inthe form` oit a frame readily vmovable from p laceto place,`

'other frame 2 serving the purpose of 'a leg v. L

' so that .the frame l may be elevated` at one end while at the other end eyes3 are con-'- lnected to the frame so as to be traversedby pins 4, to be driven Iinto' shown in Fig. 1. l lThe frame 1 is arranged ,the ground, as

to carry a pump barrel 5 which` "may be conveniently madek sheet metal strengthened and stitfened by hoops 1-1 or angle iron, or the hoops may be of iiat material and the barrel 6' may be formed of staves held in place by the hoops 11.

Fast to the inner walls ofthe tangential port-ion 7 of vthe pump barrel are"iangle bars 12 riveted or otherwise secured in place and presenting angle portions 13 away from the interior of the barrel 6 soas to be' sub` stantially in lalinernent with` 'each other in a plane about tangentialfto a circle 'corre` sponding tothe inner wall of the cylindrical part 10 of the pump barrel. lThe angles 13 provide an abutting wall for asuitable number o1 doors or closures 14 held in place byy bolts 15 orin any other appropriate inani'ier" sothat the wall of thepump barrel remote from the cylindrical wall 6 ma be built up or lowered as may be found esirable. order to facilitate discharge of water from the upper end of the sectional wall built up of the doors or closures 1.4-, there is provided a readily removable and adjustable spout 16 bolted or otherwise secured to the angle strips 12 permitting the adjustment ot the spout as may be required. v

4The beams 8 of the pump structure 5 are provided with brackets 17 arranged on opposite sides of the pump and provided with a plurality of matching pertorations 18 to be traversed by a pivot pin 19, whereby thev pump barrel may be pivotally carried on the pin 19 in turn supported by the longitudinal beams of the trame 1 and lodgin between guide blocks 20.

*ast at one end of the trame 1 near the end anchored by the pins 41: are stay bars 21, each extending to a high point of the frame of' the pump barrel and provided with `a row of per'lorations 22 for the attachment ot the stay bars 21 to brackets S, whereby the angle ot inclination ot' the pump barrel may be varied.

Extending axially through the cylindrically shaped portion of the pump barrel 5 is a shaft 241- having journal bearings 25,

26,above the top and below the bottom of the pump barrel. The shaft 24 where within the fully cylindrical yportion ot' the pump barrel carries volute blades 27 arranged to litt water through the cylindrical portion 10 and from the latter up through the remainder of the pump barrel until a height is reached permitting the outflow ot the water through the spout 16. In order to avoid any back i'low of water through the volute impeller, the volutes 27 in interlaced relation, are provided. Experience has shown that two such interlaced volutes are suflicient for the purpose oit the invention.

At the end of the shaft 24, remote trom the volute impeller, lthere is provided a ulley 28 permitting the application oi1 a belt 29 for driving the shaft from a suitable source oli' power, of which an explosion engine may be taken as an example, since explosion engines are obtainable in small units and most persons who would desire to use a pump like that ot the inrention are familiar with the operation of such engines.

When a pump such as shown and described is installed on the banks of or across a small stream, the pump barrel 5 is rocked on the pivot pin 19 suliiciently to bring the barrel into a nearly upright position, with the spout 16 at an appropriate height. This moves the pump barrel 5 into the stream of water to be pumped, which stream may be of suilicient capacity for the purpose of the invention. Furthermore,

underlying the discharge end or" the spout 16 is a trough or conduit 30 which may be supported by a trestle 31 and may lead to any point where the water elevated by the pump may be disposed ot tor irrigating or' other purposes.

The volutes or impellers tend to impart a rotating or swirling movement to the water, but this is, in large part, broken up by the non-circular cross sectional shape oic the interior ot the pump barrel above the impellers.

`What is claimed is:

1. A pump 'for irrigation and other purposes, comprising` a pump barrel ot noncircular cross section, with an intake end of cylindrical yform., rotatable water impelling means in the cylindrical end, and closures disposed along the non-circular portion of the pump barrel for providing outlets or the pumped water at different levels.

2. A pump tor irrigating purposes, coniprising a suitable support, a pump barrel pivotally mounted thereon to be moved toward and from an upright position, brace bars tor holding the pump' bars in diii'ercnt positions ot slant, rot-ary water impelling means in the pump barrel and extendabove the top thereof, driving means for the Arotary means, and outlets for the pump barrel arranged at different lheights and each provided with means for opening and closing the outlets controlled thereby.

3. A. pump for irrigation purposes, comprising a piv tally mounted pump barrel capable of movement toward and from an upright positi n, rotary means in the pump barrel for elevating water therein, ,a series ot gates or closur s arranged along one side of: the pump barrel tor permitting the escape of' water at the diil'erent heights at will, and means for holding the pump barrel either in an upright or in a slanting position.

it. A pump for irrigation purposes, comprising a pump barrel having one side flat and provided with a series of gates at ditt'erent heights and the other side oi? the barrel being of' rounded conformation, whereby the cross sectional shape of the pump barrel is in the main non-circular, and said pump barrel having an intake portion of circular cross section, and water lifting means in the part of the pump or" circular cross section comprising substantial volute blades.

In testimony, that-1 claim the foregoing as my own, l have hereto ailined my signature.

GEORGE LOBB. 

